#ifndef _UAPI_CAN_GW_H
#define _UAPI_CAN_GW_H

#include <sys/types.h>
#include "lib/can.h"

struct rtcanmsg {
	__u8	can_family;
	__u8	gwtype;
	__u16	flags;
};

enum {
	CGW_TYPE_UNSPEC,
	CGW_TYPE_CAN_CAN,
	__CGW_TYPE_MAX
};

#define CGW_TYPE_MAX (__CGW_TYPE_MAX - 1)

enum {
	CGW_UNSPEC,
	CGW_MOD_AND,
	CGW_MOD_OR,
	CGW_MOD_XOR,
	CGW_MOD_SET,
	CGW_CS_XOR,
	CGW_CS_CRC8,
	CGW_HANDLED,
	CGW_DROPPED,
	CGW_SRC_IF,
	CGW_DST_IF,
	CGW_FILTER,
	CGW_DELETED,
	CGW_LIM_HOPS,
	CGW_MOD_UID,
	__CGW_MAX
};

#define CGW_MAX (__CGW_MAX - 1)

#define CGW_FLAGS_CAN_ECHO 0x01
#define CGW_FLAGS_CAN_SRC_TSTAMP 0x02
#define CGW_FLAGS_CAN_IIF_TX_OK 0x04

#define CGW_MOD_FUNCS 4

#define CGW_MOD_ID		0x01
#define CGW_MOD_DLC		0x02
#define CGW_MOD_DATA	0x04

#define CGW_FRAME_MODS	3

#define MAX_MODFUNCTIONS (CGW_MOD_FUNC * CGW_FRAME_MODS)

struct cgw_frame_mod {
	struct can_frame ct;
	__u8 modtype;
} __attribute__((packed));

#define CGW_MODATTR_LEN sizeof(struct cgw_frame_mod)

struct cgw_csum_xor {
	__s8 from_idx;
	__s8 to_idx;
	__s8 result_idx;
	__u8 init_xor_val;
} __attribute__((packed));

struct cgw_csum_crc8 {
	__s8 from_idx;
	__s8 to_idx;
	__s8 result_idx;
	__u8 init_crc_val;
	__u8 final_xor_val;
	__u8 crctab[256];
	__u8 profile;
	__u8 profile_data[20];
} __attribute__((packed));

#define CGW_CS_XOR_LEN		sizeof(struct cgw_csum_xor)
#define CGW_CS_CRC8_LEN		sizeof(struct cgw_csum_crc8)

enum {
	CGW_CRC8PRF_UNSPEC,
	CGW_CRC8PRF_1U8,
	CGW_CRC8PRF_16U8,
	CGW_CRC8PRF_SFFID_XOR,
	__CGW_CRC8PRF_MAX
};

#define CGW_CRC8PRF_MAX (__CGW_CRC8PRF_MAX - 1)

#endif /* !_UAPI_CAN_GW_H */